Floating voltage reference having dual output voltage
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United States of America Patent
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Sep 8, 1992
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N/A
app pub date -
Mar 2, 1992
filing date -
Jun 8, 1990
priority date (Note) -
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Abstract
A voltage reference circuit maintains two nodes at constant voltages with respect to a reference by means of a tapped divider chain in parallel with a floating voltage reference circuit, both of which feed into the output node of a single differential amplifier. The reference circuit maintains a constant voltage across the divider chain and the amplifier floats the divider up or down to maintain a node in the chain at the reference voltage.
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